Which factor that influences body fatness burns calories
for energy?

How will technology impact medicine in the future?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes